Meshing issues on bodies separated by a distance but ‘bonded’ contact

- May 10, 2025 at 11:36 pm
  
  cidshikha
  Subscriber
  
  Hi everyone,
  I have two bodies separated by a distance, but they are defined as bonded contact. I am trying to mesh them in Mechanical using 'Sweep' method but the mesh on the bottom body looks like in the picture below. I am unable to get all equal Quad mesh on the body. Moreover, the top body doesn't mesh at all. When 'Multizone' method is defind on the top body, then I get th emesh that looks like the below picture on both bodies. I tried all this while keeping Adaptive sizing 'off', but tetrahedral mesh is generated on both the bodies when Adaptive sizing is 'on'. Why so? ALso, I didn't share topology from the spaceclaim. Could it be affecting the mesh this way? If anyone could help me understand what's happening here, that would be great.
- May 12, 2025 at 9:53 am
  
  mohan.urs
  Ansys Employee
  
  Hey,
  Have you checked the geometry once in SpaceClaim or Discovery ? Seems like there could be small features where the local refining is happening. This could also be the reason for mesh generating with Adaptive Sizing - On. You can check for split or extra edges even small faces in SpaceClaim or Discovery and see if anything pops up.
  Split Edges Tool / Extra Edges Tool / Small Faces Tool / Checking Geometry
  You mention top body does not mesh at all - Is this true for the default meshing without any mesh controls ? If so does it show any error messages ?
  Regards,
  Mohan Urs